442314243 has 64 divisors (see below), whose sum is σ = 809856000. Its totient is φ = 232906752.

The previous prime is 442314199. The next prime is 442314251. The reversal of 442314243 is 342413244.

It is a happy number.

442314243 is a `hidden beast` number, since 4 + 4 + 231 + 424 + 3 = 666.

It is not a de Polignac number, because 442314243 - 2⁸ = 442313987 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (442314283) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 131203 + ... + 134531.

It is an arithmetic number, because the mean of its divisors is an integer number (12654000).

Almost surely, 2^442314243 is an apocalyptic number.

442314243 is a deficient number, since it is larger than the sum of its proper divisors (367541757).

442314243 is a wasteful number, since it uses less digits than its factorization.

442314243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3401 (or 3395 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 442314243 is about 21031.2682213888. The cubic root of 442314243 is about 761.9216392853.

Adding to 442314243 its reverse (342413244), we get a palindrome (784727487).

Subtracting from 442314243 its reverse (342413244), we obtain a palindrome (99900999).

The spelling of 442314243 in words is "four hundred forty-two million, three hundred fourteen thousand, two hundred forty-three".